I finally upgraded to SW2013 and I have one part in the assembly I've been working on that now has a bad fillet when loaded into SW2013. The assembly loaded in 2012 is OK, and the part loaded into either 2012 or 2013 is OK. It's only when it's in the assembly in SW2013 that I lose one fillet. I don't want to fix it because it's not broken that I can tell. Also, loading this assembly used to take a lengthy 2:50 minutes to load. Now it's 4:38 minutes.